Steven said: “It is cutting into our profits, but that’s irrelevant compared to a death. Falling from heights is the biggest killer in the construction industry. It’s ironic, we’re working to help people be safe, but at this rate someone’s going to get killed.”

Meanwhile, the police have issued a warning, saying: “Not only is this trespassing on private land, it is jeopardising people’s safety.

“They could cause themselves and others serious injury, or potentially pay the ultimate price of their life.”